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authorJosé Bollo <jose.bollo@iot.bzh>2016-09-12 14:08:33 +0200
committerJosé Bollo <jose.bollo@iot.bzh>2016-09-12 14:08:33 +0200
commit5b74cd6f2b5cdd82273759aa7d72150dfff58a2c (patch)
tree3c589f9487e693f9287b89eeb2fc10a8af651ce1 /doc/writing-config.xml.html
parent628dc10767d95436538391534dc3c95f45fe9a3a (diff)
add documentation & ideas about config.xml
Also enforce the strings for 'id' and 'version' to be not empty in config.xml Change-Id: I510b62891885033e0b750fac5f5de5e0fd25d75d Signed-off-by: José Bollo <jose.bollo@iot.bzh>
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+<header>
+<h1 class="title">Writing the configuration file &quot;config.xml&quot;</h1>
+<h3 class="date">02 septembre 2016</h3>
+</header>
+<nav id="TOC">
+<ul>
+<li><a href="#writing-the-configuration-file-config.xml">Writing the configuration file &quot;config.xml&quot;</a><ul>
+<li><a href="#about-config.xml">About &quot;config.xml&quot;</a></li>
+<li><a href="#example-of-config.xml">Example of &quot;config.xml&quot;</a></li>
+<li><a href="#standard-elements-of-config.xml">Standard elements of &quot;config.xml&quot;</a><ul>
+<li><a href="#the-element-widget">The element widget</a></li>
+<li><a href="#the-element-content">The element content</a></li>
+<li><a href="#the-element-icon">The element icon</a></li>
+</ul></li>
+<li><a href="#known-widget-types-and-content">Known widget types and content</a></li>
+<li><a href="#agl-features">AGL features</a><ul>
+<li><a href="#feature-nameurnaglprovides-binding">feature name=&quot;urn:AGL:provides-binding&quot;</a></li>
+<li><a href="#feature-nameurnaglrequired-permission">feature name=&quot;urn:AGL:required-permission&quot;</a></li>
+<li><a href="#feature-nameurnagl-permission">feature name=&quot;urn:AGL:-permission&quot;</a></li>
+</ul></li>
+</ul></li>
+</ul>
+</nav>
+<h1 id="writing-the-configuration-file-config.xml">Writing the configuration file &quot;config.xml&quot;</h1>
+<h2 id="about-config.xml">About &quot;config.xml&quot;</h2>
+<p>The file <strong>config.xml</strong> describes important data of the application to the framework:</p>
+<ul>
+<li>the unique identifier of the application</li>
+<li>the name of the application</li>
+<li>the type of the application</li>
+<li>the icon of the application</li>
+<li>the permissions linked to the application</li>
+<li>the services and dependancies of the application</li>
+</ul>
+<p>The file MUST be at the root of the widget and MUST be case sensitively name <strong><em>config.xml</em></strong>.</p>
+<p>The file <strong>config.xml</strong> is a XML file described by the document <a href="http://www.w3.org/TR/widgets" title="Packaged Web Apps">widgets</a>.</p>
+<h2 id="example-of-config.xml">Example of &quot;config.xml&quot;</h2>
+<p>Here is the example of the config file for the QML application SmartHome.</p>
+<div class="sourceCode"><pre class="sourceCode xml"><code class="sourceCode xml"><span class="kw">&lt;?xml</span> version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;<span class="kw">?&gt;</span>
+<span class="kw">&lt;widget</span><span class="ot"> xmlns=</span><span class="st">&quot;http://www.w3.org/ns/widgets&quot;</span><span class="ot"> id=</span><span class="st">&quot;smarthome&quot;</span><span class="ot"> version=</span><span class="st">&quot;0.1&quot;</span><span class="kw">&gt;</span>
+ <span class="kw">&lt;name&gt;</span>SmartHome<span class="kw">&lt;/name&gt;</span>
+ <span class="kw">&lt;icon</span><span class="ot"> src=</span><span class="st">&quot;smarthome.png&quot;</span><span class="kw">/&gt;</span>
+ <span class="kw">&lt;content</span><span class="ot"> src=</span><span class="st">&quot;qml/smarthome/smarthome.qml&quot;</span><span class="ot"> type=</span><span class="st">&quot;text/vnd.qt.qml&quot;</span><span class="kw">/&gt;</span>
+ <span class="kw">&lt;description&gt;</span>
+ This is the Smarthome QML demo application.
+ It shows some user interfaces for controlling an automated house.
+ The user interface is completely done with QML.
+ <span class="kw">&lt;/description&gt;</span>
+ <span class="kw">&lt;author&gt;</span>Qt team<span class="kw">&lt;/author&gt;</span>
+ <span class="kw">&lt;license&gt;</span>GPL<span class="kw">&lt;/license&gt;</span>
+<span class="kw">&lt;/widget&gt;</span></code></pre></div>
+<h2 id="standard-elements-of-config.xml">Standard elements of &quot;config.xml&quot;</h2>
+<h3 id="the-element-widget">The element widget</h3>
+<h4 id="the-attribute-id-of-widget">the attribute id of widget</h4>
+<p>The attribute <em>id</em> is mandatory (for version 2.x, blowfish) and must be unique.</p>
+<p>Values for <em>id</em> are any non empty string containing only latin letters, arabic digits, and the three characters '.' (dot), '-' (dash) and '_' (underscore).</p>
+<p>Authors can use a mnemonic id or can pick a unique id using command <strong>uuid</strong> or <strong>uuidgen</strong>.</p>
+<h4 id="the-attribute-version-of-widget">the attribute version of widget</h4>
+<p>The attribute <em>version</em> is mandatory (for version 2.x, blowfish).</p>
+<p>Values for <em>id</em> are any non empty string containing only latin letters, arabic digits, and the three characters '.' (dot), '-' (dash) and '_' (underscore).</p>
+<p>Version values are dot separated fields MAJOR.MINOR.REVISION.</p>
+<h3 id="the-element-content">The element content</h3>
+<p>The element <em>content</em> is mandatory (for version 2.x, blowfish) and must designate a file (subject to localisation) with its attribute <em>src</em>.</p>
+<p>The content designed depends on its type. See below for the known types.</p>
+<h3 id="the-element-icon">The element icon</h3>
+<p>The element <em>icon</em> is mandatory (for version 2.x, blowfish) and must be unique. It must designate an image file with its attribute <em>src</em>.</p>
+<h2 id="known-widget-types-and-content">Known widget types and content</h2>
+<p>The configuration file <strong><em>/etc/afm/afm-launch.conf</em></strong> defines the types of widget known and how to launch it.</p>
+<p>Known types for the type of content are (for version 2.x, blowfish):</p>
+<ul>
+<li><p><strong><em>text/html</em></strong>: HTML application, content.src designates the home page of the application</p></li>
+<li><p><strong><em>application/x-executable</em></strong>: Native application, content.src designates the relative path of the binary</p></li>
+<li><p><strong><em>application/vnd.agl.url</em></strong>: Internet url, content.src designates the url to be used</p></li>
+<li><p><strong><em>application/vnd.agl.service</em></strong>: AGL service defined as a binder, content.src designates the directory of provided binders, http content, if any, must be put in the subdirectory <strong><em>htdocs</em></strong> of the widget</p></li>
+<li><p><strong><em>application/vnd.agl.native</em></strong>: Native application with AGL service defined as a binder, content.src designates the relative path of the binary, bindings, if any must be put in the subdirectory <strong><em>lib</em></strong> of the widget, http content, if any, must be put in the subdirectory <strong><em>htdocs</em></strong> of the widget</p></li>
+<li><p><strong><em>text/vnd.qt.qml</em></strong>, <strong><em>application/vnd.agl.qml</em></strong>: QML application, content.src designate the relative path of the QML root, imports must be put in the subdirectory <strong><em>imports</em></strong> of the widget</p></li>
+<li><p><strong><em>application/vnd.agl.qml.hybrid</em></strong>: QML application with bindings, content.src designate the relative path of the QML root, bindings, if any must be put in the subdirectory <strong><em>lib</em></strong> of the widget, imports must be put in the subdirectory <strong><em>imports</em></strong> of the widget</p></li>
+<li><p><strong><em>application/vnd.agl.html.hybrid</em></strong>: HTML application, content.src designates the home page of the application, bindings, if any must be put in the subdirectory <strong><em>lib</em></strong> of the widget, http content must be put in the subdirectory <strong><em>htdocs</em></strong> of the widget</p></li>
+</ul>
+<h2 id="agl-features">AGL features</h2>
+<p>The AGL framework uses the feature tag for specifying security and binding requirement of the widget.</p>
+<p>The current version of AGL (up to 2.0.1, blowfish) has no fully implemented features.</p>
+<p>The features planned to be implemented are described below.</p>
+<h3 id="feature-nameurnaglprovides-binding">feature name=&quot;urn:AGL:provides-binding&quot;</h3>
+<p>Use this feature for each provided binding of the widget. The parameters are:</p>
+<h5 id="param-namename">param name=&quot;name&quot;</h5>
+<p>REQUIRED</p>
+<p>The value is the string that must match the binding prefix. It must be unique.</p>
+<h5 id="param-namesrc">param name=&quot;src&quot;</h5>
+<p>REQUIRED</p>
+<p>The value is the path of the shared library for the binding.</p>
+<h5 id="param-nametype">param name=&quot;type&quot;</h5>
+<p>REQUIRED</p>
+<p>Currently it must be <strong><em>application/vnd.agl.binding.v1</em></strong>.</p>
+<h5 id="param-namescope">param name=&quot;scope&quot;</h5>
+<p>REQUIRED</p>
+<p>The value indicate the availability of the binidng:</p>
+<ul>
+<li>private: used only by the widget</li>
+<li>public: available to allowed clients as a remote service (requires permission+)</li>
+<li>inline: available to allowed clients inside their binding (unsafe, requires permission+++)</li>
+</ul>
+<h5 id="param-nameneeded-binding">param name=&quot;needed-binding&quot;</h5>
+<p>OPTIONAL</p>
+<p>The value is a space separated list of binding's names that the binding needs.</p>
+<h3 id="feature-nameurnaglrequired-permission">feature name=&quot;urn:AGL:required-permission&quot;</h3>
+<p>Several permission can be listed or none whether no permission is requested for the widget.</p>
+<p>Each required permission must be explicited using a <param> entry.</p>
+<h5 id="param-namerequired-permission-name">param name=[required permission name]</h5>
+<p>The value is either:</p>
+<ul>
+<li>required: the permission is really needed.</li>
+<li>optional: the permission isn't mandatory</li>
+</ul>
+<h3 id="feature-nameurnagl-permission">feature name=&quot;urn:AGL:-permission&quot;</h3>
+</body>
+</html>